中文字幕人妻无码乱精品,国产精品扒开腿做爽爽爽a片软件,51精品国产人成在线观看,我,我天天要操你的骚逼

中文版
Welcome to Hubei Microbial Control Biological Technology Co., Ltd

Products

Products

ViewSonic tanning GT

Features:
This product is a new generation of leather tanning agent developed on the basis of the modified glutaraldehyde tanning agent. It overcomes the shortcomings of the modified glutaraldehyde to stimulate the smell and adds other active substances. The formed macromolecule structure contains aldehyde Base, hydroxyl, carboxyl and other active groups, with the combination of collagen richer, with more points, into a soft, full leather, leather surface meticulous, washable, perspiration, acid, storage, low formaldehyde content .

The main performance indicators:
Appearance transparent colorless or pale yellow liquid
Active & gt; 50%
PH @ 25oC 5--7
Solubility in water @ 20oC miscible

Use:
This product is mainly used for fur and leather tanning. For the fur tanning, the water 30L / Zhangpi, new pool ViewSonic tanning GT dosage 7 ~ 10g / L water, the old pool ViewSonic tanning GT dosage of 3 ~ 4g / L of water, PH6.5 ~ 8.5 ,, the best tanning temperature of 35 -40 ℃, tanning time of 40 to 48 hours. For leather tanning, the amount of 2-5% (to shave leather weight), PH6 ~ 8.5. The best tanning temperature is 30-38 ℃, liquid ratio in 1-2.5, the turning time of more than 0.5 hours.

Packing: 25KG; 125KG; 200KG plastic drums



Home

Home

About us

About us

Products

Products

Contact us

Contact us

尤物蜜芽国产成人精品区| 国产精品专区一区二区三区| 免费午夜福利视频在线看| 色欲一区二区三区精品a片| 国内精品免费视频自在线| 97在线视频对对碰视频| 99在线观看| 国产精品亚洲αv天堂无码| 国产精品麻豆成人av电影艾秋| 69堂国产成人精品在线| 久久综合一区| 亚洲国产精品久久无人区| 国产精品无码A∨在线看| 午夜性生活免费看的视频| 一本大道熟女人妻中文字幕在线| 国精产品999一区二区三区有限 | 亚洲精品日韩精品一乛方| 成人精品区免费在线观看| 色欲AV在线中文字网站| 亚洲最色最色最色的视频| 99爱在线精品免费观看| 少妇喷水久久久久久久久| 日韩午夜在线视频不卡片| 午夜福利啪啪无遮挡免费| 日本高清视频在线一区二区| 9久久精品高潮一区二区| 国产精品三级不卡在线观看| 午夜dj在线观看免费视频| 亚日韩在线中文字幕亚洲| 国产亚洲精品久久久97密| 色欲av精品人妻一区二区| 国产精品18禁污污网站| 国产精品自产拍在线涩浪| 最新自拍成人在线看片网| a√新天堂资源在线观看| 亚洲日韩中文欧美V日本| 麻豆av永久地址久久精品 | a天堂专区一区二区三区| 亚洲中文字幕日本在线观看 | 在线午夜福利网| 亚洲欧美激情四射在线日|